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The boy's name Gilleon \gi(l)-leon\ is a variant of Gillean (Irish, Gaelic), and the meaning of Gilleon is "servant of Saint John". The baby name Gilleon sounds like Gillon, Gillion and Gillen. Other similar baby names are Gillson, Dillon, Dillen, Gaillen, Gilson, Gideon, Gilles, Gilley, Gillian, Gillan, Gilean, Gillett, Gillman, Gilon, Gillroy, Killean and Millen. Gilleon is a very rare male first name and is not used as a surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Gilleon. Compare Gilleon with related baby names.
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